IOLinc won't link

[wpmjones]

I've found a couple of topics on IOLincs going bad, but I'm not sure that's the issue here. If I tap the button, it works as expected (the attached buzzer goes off for 2 seconds, then shuts off). If I hold the set button, it goes into Set mode as it should. But when I go to my new ISY-994i PRO, it just won't link. I have another IOLinc that seems to work just fine. So I'm at a loss as to what to try to get this one linked.
 

Sat 07/18/2015 07:27:40 PM : [1c 7 3a     ] Added to list of devices to link to ISY
Sat 07/18/2015 07:27:40 PM : [INST-TX-I1  ] 02 62 1C 07 3A 0F 0D 00
Sat 07/18/2015 07:27:40 PM : [INST-ACK    ] 02 62 1C.07.3A 0F 0D 00 06                 (00)
Sat 07/18/2015 07:27:49 PM : [INST-TX-I1  ] 02 62 1C 07 3A 0F 0D 00
Sat 07/18/2015 07:27:49 PM : [INST-ACK    ] 02 62 1C.07.3A 0F 0D 00 06                 (00)
Sat 07/18/2015 07:27:58 PM : [INST-TX-I1  ] 02 62 1C 07 3A 0F 0D 00
Sat 07/18/2015 07:27:58 PM : [INST-ACK    ] 02 62 1C.07.3A 0F 0D 00 06                 (00)
Sat 07/18/2015 07:28:02 PM : [1C 7 3A 0   ] Failed to add device, reason 3
Sat 07/18/2015 07:28:02 PM : [All         ] Writing 0 bytes to devices

Thoughts?

[stusviews]

The I/O Linc is powerline only, so if the opposite legs of the center-tapped, single-phase electric supply have not been coupled and the I/O Linc and PLM are, in fact, on those opposite legs, then the PLM may not be able to see the I/O Linc.

 

The first item to check is coupling as indicated by the 4-tap or bridge test. Do you have at lest two dual-band devices and/or range extenders?

 

BTW, you may be able to link the I/O Linc if you relocate it, but you still won't be able to reach it in its original location, so the test is important.